Navigate by touch.

// Runs on YOUR backend. The secret key never ships to devices.
import { HapticAdmin } from '@haptic/navigation-sdk/server';

const haptic = new HapticAdmin({
  secretKey: process.env.HAPTIC_SECRET_KEY,
});

app.post('/haptic/session', requireUser, async (req, res) => {
  const { token, expiresAt } = await haptic.sessions.create({
    userId: hash(req.user.id), // pseudonymous, never PII
    scopes: ['navigate'],
    ttlSeconds: 900,         // short-lived, single user
  });
  res.json({ token, expiresAt });
});

// The device only ever sees a short-lived session token.
import { HapticNav } from '@haptic/navigation-sdk';

const { token } = await fetch('/haptic/session', { method: 'POST' })
  .then((r) => r.json());

const haptic = new HapticNav({
  sessionToken: token,
  corridorWidth: 2.5,        // metres
  platform: 'ios',           // 'ios' | 'wearos' | 'web'
});

// Start navigation: one navigation session
haptic.navigate({
  destination: { lat: 40.7128, lng: -74.006 },
  onDeviation: (angle, distance) => haptic.calculateFeedback(angle),
});